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14 August, 16:05

If a + (-b) = 7 and a=9 what is b?

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Answers (2)
  1. 14 August, 16:26
    0
    The answer is - 2 because u can do 9-7and is 2 left so u but the the 2 there and it is know as - 2 bc the negative Stay the same
  2. 14 August, 16:33
    0
    if a=9 it would be

    9 + (-b) = 7

    (-b) = 9-7

    (-b) = 2
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